hi George, we actually use the kernel of Redhat 5 u1 which is provided in the iso-image from rhn.redhat.com (2.6.18-53). Thx for the info about the fix! Maybe this could work! so long chris -----Ursprüngliche Nachricht----- Von: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] Im Auftrag von George Magklaras Gesendet: Mittwoch, 12. März 2008 14:21 An: General Red Hat Linux discussion list Betreff: Re: Problems using multipath _ md _ lvm with IBM Series I and DS8000 Hmm, I have seen something on a recent RHN release for a new kernel fix. It came in yesterday and for what you describe, it looks as if your device-mapper-multipath module code is causing the problem. Do you have the problem with the latest new kernel? (see below) GM -- -- George Magklaras Senior Computer Systems Engineer/UNIX Systems Administrator EMBnet Technical Management Board The Biotechnology Centre of Oslo, University of Oslo http://folk.uio.no/georgios Bug Fix Advisory - RHBA-2008:0128-3 ------------------------------------------------------------------------------ Summary: device-mapper-multipath bug fix update Updated device-mapper-multipath packages that fix a bug are now available. Description: The device-mapper-multipath packages provide tools to manage multipath devices by giving the device-mapper multipath kernel module instructions on what to do, as well as by managing the creation and removal of partitions for device-mapper devices. These updated device-mapper-multipath packages fix a bug that occurs when running multipath on a device containing the root filesystem. On such systems, multiple path faults and recovery events could result in the multipathed host becoming unresponsive. In order to bring a failed path back online, some multipath devices require a priority callout program. These programs are located on a ramfs; however, they were not statically compiled, and needed libraries that were located on the root filesystem. To fix this, all priority callouts are now statically compiled. Users are advised to upgrade to these updated device-mapper-multipath packages, which resolve this issue. Hartung, Christopher wrote: > Hi @all, > > We've problem installing redhat 5.1 on IBM Power System i 570 native. > Our configuration will look like this: > > DS8000_1 => LUNA => mpath (device-mapper) => PrepBoot > (8 MB), /boot (100 MB), / (rest) > DS8000_2 => LUNB => mpath (device-mapper) => PrepBoot > (8 MB), /boot (100 MB), / (rest) > > Mirroring: > => /boot => MD0 > => / => MD1 => lvm > > so we've this layers: mpath - md - lvm > > the installation of redhat works fine. But after starting the > initprocess of our new system and initialization of the multipath > devices the system can't found any md devices and in effect of this the > system can't find the lvm configuration and gets a kernel panic because > the root filesystem isn't found. > > We found many entrys in mailinglists to configure an new initramdisk but > not really explained in detail. The questions are, would a new init > solve our problem (if so, what must we do?) and would this configuration > above work in this constellation? > > Thanks for your answer in advance > > So long, > > christopher > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
